Permanent Partial Impairment Ratings for Iowa Workers' Compensation
Objective, board-certified impairment assessments using AMA Guides, 5th Edition. Serving Cedar Rapids, Johnston, and Davenport with local expertise and fast turnaround.
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Objective Impairment Evaluations for Workers' Comp
What Is a Permanent Partial Impairment Rating?
A permanent partial impairment rating measures the lasting effects of a work-related injury on a person’s body part or function, directly affecting the benefits a claimant may receive under Iowa Workers’ Compensation. At Probity Medical Services, Dr. Jeffrey Westpheling, a board-certified occupational medicine physician, provides impartial ratings based on the AMA Guides, 5th Edition, which is the standard for Iowa claims. These assessments are strictly one-time, independent evaluations and do not involve ongoing care or treatment. The process results in a defensible report that clarifies both the degree of impairment and its direct connection to the workplace incident. This service is essential for insurance adjusters and nurse case managers who need an expert, locally recognized rating to resolve claims quickly and accurately.
Why Local Experience and Impartiality Matter
Trusted Assessments by an Iowa Medical-Legal Specialist
With over 25 years of full-time clinical experience in Iowa, Dr. Westpheling is uniquely qualified to provide permanent partial impairment opinions that stand up to legal review. Probity Medical Services is here to deliver unbiased, evidence-based ratings that are respected by insurance carriers, attorneys, and the Iowa Workers’ Compensation system. Unlike national vendors or visiting evaluators, our local presence in Cedar Rapids, Johnston, and Davenport means claimants and stakeholders benefit from regional knowledge and the convenience of in-state evaluation sites. We never require prepayment, and our reports are usually completed within one to two weeks, helping adjusters and attorneys move claims forward without delay. Every impairment rating is strictly for workers’ compensation cases. We do not accept personal injury or malpractice cases, which maintains clear boundaries and objectivity.
How the Impairment Rating Process Works
From Referral to Report: Our Evaluation Procedure
The process begins with a referral from an insurance adjuster or nurse case manager. Once relevant medical records are received—either at our Marion PO Box or electronically—our office arranges the claimant’s evaluation at one of our three Iowa locations: Cedar Rapids (CR Prep Building, North River Blvd NE), Johnston (Regus Building, blue awning), or Davenport (Wyffels Hybrids Building, East 53rd Street). Dr. Westpheling conducts a thorough, one-time examination and applies the AMA Guides, 5th Edition, to determine the degree of permanent loss. The resulting report includes a clear impairment percentage and supporting rationale, ready for use in resolving the workers’ compensation claim. No ongoing treatment or follow-up care is provided. Reports are delivered within two weeks, and all correspondence is managed through our central administrative address to protect client records and ensure efficiency.
Objective, Defensible Ratings Every Time
Your Source for Reliable Permanent Impairment Opinions
Probity Medical Services focuses exclusively on the needs of the Iowa workers’ compensation community. Our permanent partial impairment ratings are impartial, evidence-based, and grounded in local expertise. Dr. Westpheling’s board certification and decades of Iowa experience provide confidence that each assessment will stand up to legal and administrative review. We operate transparently, with clear communication and no hidden fees. By maintaining strict boundaries—one-time evaluations only, no treatment takeovers, and workers’ compensation cases only—we ensure every stakeholder receives the objective clarity they need. For adjusters, attorneys, and nurse case managers handling complex or high-stakes claims, Probity is the trusted source for AMA-compliant impairment ratings in Cedar Rapids, Johnston, and Davenport.
Frequently Asked Questions About Impairment Ratings
Answers to Common Questions on Ratings, Process, and Scheduling
What is a permanent partial impairment rating in Iowa Workers’ Compensation?
A permanent partial impairment rating measures the lasting functional loss from a work-related injury and helps determine benefit entitlement. It is based on medical evidence and follows the AMA Guides, 5th Edition for consistency and legal defensibility.
Who performs impairment ratings at Probity Medical Services?
All impairment evaluations are conducted by Dr. Jeffrey Westpheling, a board-certified occupational medicine physician with extensive Iowa clinical experience. His ratings are designed to be objective, impartial, and defensible in Workers’ Compensation proceedings.
Which guidelines are used to calculate impairment ratings?
Probity Medical Services uses the AMA Guides to the Evaluation of Permanent Impairment, 5th Edition, which is the standard reference in Iowa Workers’ Compensation cases. These guidelines ensure ratings are consistent, evidence-based, and legally recognized.
How long does it take to receive an impairment rating report?
Most impairment rating reports are completed within one to two weeks after the evaluation and receipt of medical records. This quick turnaround supports efficient claim resolution for adjusters and attorneys.
Does Probity Medical Services provide treatment along with impairment ratings?
No, impairment ratings are strictly one-time evaluations with no ongoing treatment or care provided. This ensures the assessment remains independent, objective, and focused solely on determining permanent impairment.

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